Persicaria tinctoria
(Redirected from Polygonum tinctorum)
| Persicaria tinctoria | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Persicaria |
| Species: | P. tinctoria
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| Binomial name | |
| Persicaria tinctoria | |
| Synonyms[1] | |
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Persicaria tinctoria is a species of flowering plant in the buckwheat family. Common names include Chinese indigo, Japanese indigo and dyer's knotweed.[2][3][4] It is native to Southern China and Vietnam, and has been introduced to other parts of China, as well as Germany, Japan, Korea, Tibet, North and South Caucasus, parts of the Russian Far-East, and Ukraine.[5]
The leaves are a source of indigo dye. It was already in use in the Western Zhou period (c. 1045 BC – 771 BC), and was the most important blue dye in East Asia until the arrival of Indigofera from the south.
See also
[edit]References
[edit]- ^ Persicaria tinctoria. The Plant List.
- ^ Japanese Indigo Polygonum tinctorium also called: Persicaria tinctoria
- ^ An Impartation of Color: Japanese Indigo (Polygonum tinctorium) – leaves
- ^ "Dye seeds Japanese indigo, Polygonum tinctorium". Archived from the original on 2023-06-05. Retrieved 2023-08-23.
[...] Japanese indigo or dyer's knotweed is a plant that contains indigo precursors in the green leaves.
- ^ "Persicaria tinctoria". Royal Botanic Gardens Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 9 June 2025.
Gallery
[edit]-
Traditional natural dyeing (Korean blue)
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